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Solar · EcoFlow

Solar panels for the EcoFlow RIVER 2

Written by Ian Schneider·Solar & Off-Grid Tester

The RIVER 2 weighs 7.8 pounds, and the solar port is sized to match. One XT60 socket, the yellow two-pin DC plug, rated for 11 to 30 volts and 110 W. Seventeen of the forty-one panels we track stay under 30 volts, five of them EcoFlow's own. Eighteen read higher, and three of those are EcoFlow's too.

At 110 W a 256 Wh battery is full in a little over two hours of good sun, and any of the seventeen can hold the port there. Seven do it alone. The lightest of the seven is Renogy's 200 W blanket at 8.82 pounds, which is more than the station weighs. Four of Jackery's SolarSaga 40 Air reach the same 110 W at 1.98 pounds apiece, about the station's weight between them. If the whole kit rides in a pack down to the lake, I'd take the four.

The door
11–30 V
Its width
110 W
Plug
XT60
Full battery, best case
~2.3 h
EcoFlow RIVER 2 portable power station
EcoFlow's US store sells this as the RIVER 2 240, and the manual it offers for download is the European edition, model EFR600. The solar row reads the same in both, down to the 8 amps.

The door

Every panel we track, lined up at the RIVER 2's solar input

Every panel we track, each bar as tall as the voltage printed on its label. That figure is Voc, the open-circuit voltage, which is what the panel puts out in sun before anything draws current from it. The black line is 30 V. The RIVER 2's manual asks for less than that, and a bar reaching past it stays off this station.

The pale cap on each bar is the cold. At −10 °C a panel reads about 10% above its label, and three panels only cross the line with that cap on. The Eco-Worthy 200W flexible reads 29.1 on its label, which is under in July. On my deck on a January morning it would not be.

Hover a bar to see which panel it is. If there is already a panel in your garage, read the Voc off the sticker on its back and type it in the box. The chart stands it in the line with the rest.

Swipe sideways for the whole line-up.

010203040506070volts, open-circuit1+++2yours?30 V · the lintel11 V · the step

Hover or tap a bar for the panel’s name and its verdict.

  • Fits through the door
  • Too tall
  • Extra height on a −10 °C morning
  • Maker prints only the operating voltage; the real height is above the dashes
  • 1Our pick: Renogy 200W Portable Solar Panel Blanket
  • 2EcoFlow's own 125W Bifacial Modular

What we'd buy

The best solar panel for the RIVER 2

Picked by the numbers on this station, not by brand.

Best overall

Renogy 200W Portable Solar Panel Blanket (RPP200SB-SE)

One panel delivers 110 W, the most the input takes.

Check price at Renogy

Best to carry

Jackery SolarSaga 40 Air (JS-40C)

30 W from a 1.98 lb panel, the most delivered watts per pound.

Check price at Jackery

A day on solar

How long the RIVER 2 takes to charge on solar

A little over two hours, with the port taking its full 110 W. Any of the seventeen can get it there, some alone and some in pairs or fours. One 100 W panel by itself delivers about 72 W in real sun and needs a little over three and a half hours.

A good day brings three to six hours of sun that strong, so either setup has the RIVER 2 full with daylight to spare. 256 Wh does not take much catching. How many of those days a month hands you depends on your state and the season, and the system builder keeps that count.

a good day's sun: 3 to 6 h0 h1 h2 h3 h4 h5 h6 hInput full (110 W) · one 200 W panel · full in 2.3 hOne 100 W panel (72 W delivered) · full in 3.6 h

Hours of good sun, from empty. Where you live and the month decide how many of those a day gives; the system builder works it out.

Every panel that fits

Solar panels compatible with the RIVER 2

Seventeen fit. For each one: the cable it needs to reach the XT60 socket, what one panel delivers in good sun, and the most the RIVER 2 takes from a set of them. Sorted by delivered watts. That socket is the one the car charging cable uses as well, so solar and the car take turns. Seven of the seventeen want an MC4-to-XT60 lead, MC4 being the weatherproof snap plugs most panels end in. EcoFlow sells that lead on its own. It is not in the box.

EcoFlow's own, the pairings it documents

  • EcoFlow 45W Portable Solar Panel
    45 W · portable · 3.09 lb · $99 · 25.6 V
    EcoFlow lists this pairing
    Plug: MC4 → XT60 adapter
    One panel: 32 W in good sun
    Best with up to 4: 4 panels → 110 W (door full), full in ~2.3 h
    4 in parallel
    Check price at EcoFlow
  • EcoFlow 110W Portable Solar Panel
    110 W · portable · 8.8 lb · $259 · 21.8 V
    EcoFlow lists this pairing
    Plug: EcoFlow doesn't name the plug. Check the lead before buying a cable
    One panel: 79 W in good sun
    Best with up to 4: 2 panels → 110 W (door full), full in ~2.3 h
    2 in parallel
    Check price at EcoFlow

Everyone else's

Too tall

Solar panels that won't work with the RIVER 2

Eighteen panels read more than 30 volts on the label. Three are EcoFlow's own, the 125W Bifacial Modular, the 400W and the 400W Rigid, and none of them was ever meant for a socket this size. The manual's line is less than 30 V, and it names product damage as what happens above it. If you own one of the three, it stays with the station it came home with.

The tallest, Anker's SOLIX PS200, reads 57.6 V, nearly double the ceiling. Three others clear the line only once the cold adds its 10%: the BLUETTI SORA 60, the Jackery SolarSaga 80W and the Eco-Worthy 200W flexible. In August each of them is under. On my deck in January I wouldn't count on any of them, and I'd have the Fluke out before the cable went in.

Over the 30 V lintel (18)

No verdict (6): the maker doesn't publish an open-circuit voltage

Own a panel that isn't in the line-up?

Type its voltage into the door chart above for the height test, then put the rest of the label into the panel checker, already set to the RIVER 2, for current and plug too. Or build the whole system to see how it keeps up where you live.

The plain answers

How long does the RIVER 2 take to charge on solar?

One 100 W panel delivers about 72 W in good sun and refills the 256 Wh battery from empty in about 3.6 hours.

One 200 W panel delivers about 110 W in good sun and refills the 256 Wh battery from empty in about 2.3 hours.

At its 110 W solar limit it refills in about 2.3 hours. More panel watts than that won't charge it any faster.

A day gives three to six hours of sun that good, depending on season and place, so one 100 W panel takes 1 to 2 days to fill it. The system builder works it out for your state and month.

What adapter does the RIVER 2 need for solar?

Every panel we track needs a cable to reach its XT60 input. None comes in the box.

The cables they need: MC4 to XT60 (7 panels), DC8020 to XT60 (2 panels), Anderson to XT60 (2 panels) and DC5521 to XT60 (1 panel).

5 panels don't have a named plug from their maker, so check the lead before you buy a cable.

Can you use non-EcoFlow solar panels with the RIVER 2?

Yes. What decides it is the panel's voltage and plug, not the brand. 12 panels from BLUETTI, Eco-Worthy, Jackery, Renogy and Rich Solar work with it, as long as the panel stays under 30 V on a cold morning and starts above 11 V.

The strongest single panels here are the BLUETTI PV200 (110 W delivered) and the Eco-Worthy 195W N-Type 18BB Bifacial (110 W delivered).

Can you connect two solar panels to the RIVER 2?

Yes, joined into one input with a series or parallel cable.

Don't wire two BLUETTI SP100L panels in series: together they would pass its 30 V limit. Parallel them instead.

Past 110 W delivered, more panels only help on cloudy days.

What is the RIVER 2's solar input?

Solar Charging Input: 11–30 V, up to 8 A, 110 W.

Input limits from EcoFlow's documents, checked 2026-09-18 (source). Delivered watts assume 72% of the panel's rating in good sun.